Considering Russian is not only spoken in Russia but also in Kyrgyzstan, Kazakhstan, Belarus, Azerbaijan, Armenia, Estonia, Georgia, Latvia, Lithuania, Moldova, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan, what would be the safest country to travel to where you can speak Russian? Probably not Russia or Ukraine because of the war but yeah.
Depends. If you’re queer, definitely not anywhere in the former USSR (except for some of the Baltics).
If you’re not queer, and speak a language of that region, probably that area is your best bet to blend in.